Cited by 81Anaerobic Digestion and Biogas ProductionBiofuel production and bioconversionMicrobial Fuel Cells and Bioremediation

Kinetics and microbial community analysis for hydrogen production using raw grass inoculated with different pretreated mixed culture

Yang, Guang, Wang, Jianlong·2018·Bioresource Technology

Abstract

In this study, five pretreatment methods (heat shock, acid, base, aeration and gamma radiation) were applied for enriching hydrogen producers from anaerobically digested sludge, aiming to compare their hydrogen fermentation performance using raw ryegrass as substrate. Results showed that various pretreatment methods caused great variations on grass hydrogen fermentation performance. Acid pretreatment was most efficient compared with other tested pretreatment methods, with relevant hydrogen yield of 64.4mL/g dry grass and organics removal of 31.4%. Kinetics results showed that the first-order kinetic model fitted hydrogen evolution better than the modified Gompertz model. Microbiological analysis showed that various pretreatment methods caused great variations on microbial activity and microbial community composition. Clostridium and Enterococcus were two dominant genera, while relative abundances of these two genera varied greatly for different pretreated samples. Difference in microbial activity and microbial community distribution induced by the pretreatment methods might directly cause different ryegrass fermentation performance.

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Crossref · 10.1016/j.biortech.2017.09.041

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Authors
Yang, G., & Wang, J.
Affiliations
Tsinghua University (CN)
Corresponding author
Wang, Jianlong
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2018-01
Volume
247
Pages
954-962
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2753286728
Cited by
81
References
44
Citations by year
2026: 3 · 2025: 6 · 2024: 10 · 2023: 5 · 2022: 7 · 2021: 10 · 2020: 12 · 2019: 16 · 2018: 12
FWCI
10.23
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (51338005)
  • Program for Changjiang Scholars and Innovative Research Team in University (IRT-13026)
Topics
  • Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
  • Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
Keywords
hydrogen production, dark fermentation, ryegrass, pretreatment, acid pretreatment, heat shock, gamma radiation, aeration, anaerobic digestion sludge, mixed culture, Clostridium, Enterococcus, microbial communities, first-order kinetics, modified Gompertz model, hydrogen yield
MeSH terms
Bacteria, Fermentation, Poaceae, Hydrogen, Kinetics, Sewage, Bioreactors

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